Intelligent control system and method for continuous casting secondary cooling chamber electric hoist and application
Patent Information
- Application Number
- CN202411373182.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-01-03
Smart Images
Figure CN119247841A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of steelmaking equipment, and in particular to an intelligent control system, method and application of an electric hoist in a secondary cooling chamber of a continuous casting. Background Art
[0002] In the process of continuous casting, after the ingot is produced by the continuous casting equipment, it needs to be spray cooled in the secondary cooling chamber. This link is a very important process production process.
[0003] During the production process, according to the different production requirements of different ingots, the cooling section in the secondary cooling chamber needs to be replaced at any time to change the spray parameters. The replacement of the cooling section must be carried out by a crane. Therefore, the crane is required to be fully functional around the clock and has high reliability requirements.
[0004] The crane is a dual-machine crane that needs to meet the requirements of three-axis, six-direction, single-machine action and dual-machine linkage in a narrow space. Therefore, the control of the crane is particularly important. Traditional control systems are mostly relay controlled and use a large number of fuses. If any phase is blown, all fuses need to be opened and checked in turn, which is a huge workload. In addition, the specifications of the optional fuses are different, and a large number of fuses need to be stored. In addition, the control circuit is relay controlled, the hardware interlocking logic is chaotic, and troubleshooting is difficult. At the same time, the control circuit and the power circuit are installed in the same box, the space is small, the cables are densely laid, and the risk of short-circuit spontaneous combustion is high. Although the reliability is high, different electrical appliances need to be adjusted differently when changing parameters, so the adjustment is difficult. This control greatly affects the production efficiency.
[0005] Therefore, a new control system is urgently needed to reduce the difficulty and safety of adjusting the parameters of the secondary cold room crane during the production process. Summary of the invention
[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an intelligent control system, method and application of an electric hoist in a continuous casting secondary cooling chamber.
[0007] The technical solution adopted by the present invention to solve its technical problem is:
[0008] An intelligent control system for electric hoists in a continuous casting secondary cooling chamber, the system comprising a remote monitoring control system, a programming control system and an electric hoist equipment system for the secondary cooling chamber, the remote monitoring control system being connected to the programming control system, and the programming control system being connected to the electric hoist equipment system for the secondary cooling chamber;
[0009] The remote monitoring and control system can display the equipment operation status and the operation parameters of the electric hoist equipment system of the second cooling chamber, and can modify the operation parameters of the electric hoist of the second cooling chamber;
[0010] The programming control system can control the movement and lifting action of the crane to replace the cooling section;
[0011] The secondary cooling chamber electric hoist equipment system can perform the lifting operation of replacing the cooling section.
[0012] Furthermore, the remote detection and control system includes a remote monitoring screen and a remote monitoring console. The remote monitoring screen can display the equipment operation status and the operation parameters of the electric hoist equipment system of the second cold room. The remote monitoring console can modify the operation parameters of the electric hoist of the second cold room.
[0013] The program control system includes a detection unit and a program controller, the program controller is connected with a position sensor and a speed sensor, and the position sensor and the speed sensor are connected with a remote monitoring console;
[0014] The secondary cold room electric hoist equipment system includes a crane, a power unit, a position sensor and a speed sensor, and the position sensor and the speed sensor can provide the remote monitoring console with the equipment operation status and the operation parameters of the secondary cold room electric hoist;
[0015] The detection unit is connected to the programming controller, and the detection unit can detect whether the equipment of the programming controller is operating normally. The position sensor and the speed sensor are both connected to the crane, and the input ends of the position sensor and the speed sensor can input signals of the position and speed of the crane. The output ends of the position sensor and the speed sensor are respectively connected to the input end of the remote monitoring screen and the input end of the programming controller. The position sensor and the speed sensor can transmit signals to the remote detection screen for staff to observe, so as to understand the operating status of the crane. The position sensor and the speed sensor can transmit signals to the programming controller, and the programming controller performs corresponding operations according to the input signals; the remote monitoring console is connected to the input end of the programming controller, and the remote monitoring console can perform operations such as parameter modification on the programming controller. The programming console is connected to the electric hoist of the crane, and the programming controller can control the electric hoist so that the crane can perform hoisting operations to replace the cooling section;
[0016] The starting power unit is connected to the crane through a programming controller. The power unit can provide operating power for the crane, and the programming controller can control the start and stop of the crane.
[0017] Furthermore, the programmable controller also includes a memory unit, which has a memory function, so that it can record the workflow of manual operations of the staff and run it automatically, so that it can improve work efficiency.
[0018] Furthermore, the control system also includes a relay control device system, and the remote control console and the second cold room electric hoist device system are connected through the relay device system, so that in the event of a controller failure, the staff can start the relay device to work.
[0019] The method for using the above-mentioned intelligent control system of the electric hoist in the continuous casting second cooling chamber comprises the following steps:
[0020] (1) Write the controllable input variables and output variables of the device, and then load them into the controller CPU for operation;
[0021] (2) The detection unit is started to detect whether the hardware equipment and communication equipment of the control system are intact. If the hardware equipment and communication equipment are intact, the next step is carried out. Otherwise, the equipment alarm reminds the staff of equipment failure and the program is interrupted;
[0022] (3) Start the crane power unit, then release the crane safety lock, and determine whether the crane is at the initial position according to the signal transmitted by the crane position sensor. If it is at the initial position, proceed to the next step, otherwise the equipment moves to the initial position;
[0023] (4) Start the main system of the crane, and the detection unit detects the main control machine to determine whether it has a fault. If not, proceed to the next step. Otherwise, the equipment is filtered out and tested again. If multiple tests show a fault, the equipment alarm reminds the staff of the equipment fault and the program is interrupted;
[0024] (5) The main contactor of the crane is energized, the electric hoist is started, and the crane begins to operate. Manual control or automatic control is selected based on the operation of the operator at the control console. If manual control is selected, the electric hoist moves according to the operation of the operator at the control console;
[0025] (6) If automatic control is in operation, the crane is first selected to be in the south hook or north hook position, and then the crane moves to the working area according to the feedback from the position sensor and the set parameters of the program. At the same time, according to the speed sensor signal, the crane first moves quickly to the working area, and then moves slowly after arriving at the working area to perform precise alignment to complete the lifting work, and then moves the hoisted object to other working areas to complete the lifting work.
[0026] The application of the intelligent control system of the electric hoist in the secondary cooling chamber of continuous casting as described above in the replacement of the cooling section in the secondary cooling chamber of continuous casting.
[0027] The advantages and positive effects achieved by the present invention are:
[0028] 1. The present invention uses intelligent programming control system and remote monitoring control, so that workers can operate without entering the workshop, reducing labor costs and improving work efficiency. Remote control reduces the risk exposure of workers on site, greatly reduces the probability of accidents, and improves production safety.
[0029] 2. The present invention combines the traditional relay control system with the intelligent programming control system, which not only retains the stability of the traditional control system, but also has the flexibility of the intelligent control system. The system has a built-in detection unit that can monitor the status of hardware devices and communication equipment in real time. Once an abnormality is found, it will immediately alarm and remind the staff, effectively preventing the expansion of the fault and improving the reliability of the system.
[0030] 3. The system of the present invention supports both manual and automatic control modes, which can be flexibly switched according to actual needs to meet the operation requirements in different production scenarios. The programming controller has a memory function, which can record the manual operation process of the staff and run it automatically, improving the convenience and efficiency of work.
[0031] 4. The intelligent control system of the present invention reduces the use of fuses, reduces the downtime caused by fuse blowing, and also reduces the volume of the electrical control cabinet, reducing the probability of fire accidents in the electrical cabinet. Through the combination of programmable controller and sensor, the system fault troubleshooting and maintenance process is simpler, reducing maintenance costs and difficulty.
[0032] 5. The intelligent control system of the present invention reduces the number of hardware in the electrical control cabinet and reduces the size of the control cabinet. Compared with the traditional relay control system, the programming control system can adjust parameters more conveniently without making different adjustments for different electrical appliances, which improves the convenience and accuracy of parameter adjustment. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 A simplified schematic diagram of module connection of the system of the present invention;
[0034] Figure 2 for Figure 1 A schematic diagram of module connection;
[0035] Figure 3 A schematic diagram of a flow chart of the control method of the present invention;
[0036] Figure 4 It is a schematic diagram of the main power supply circuit and main loop control connection of the intelligent control system of the present invention. DETAILED DESCRIPTION
[0037] The present invention will be further described in detail below in conjunction with specific examples. The following examples are only illustrative and not restrictive, and the protection scope of the present invention cannot be limited thereto.
[0038] The raw materials used in the present invention, unless otherwise specified, are conventional commercial products, the methods used in the present invention, unless otherwise specified, are conventional methods in the art, and the quality of each substance used in the present invention is conventional quality. The structures, connection relationships, etc. not described in detail in the present invention can be understood as conventional technical means in the art.
[0039] An intelligent control system for electric hoists in the second cooling chamber of continuous casting, such as Figure 1 and Figure 2 As shown, the system includes a remote monitoring control system, a programming control system and a second cooling chamber electric hoist equipment system, the remote monitoring control system is connected to the programming control system, and the programming control system is connected to the second cooling chamber electric hoist equipment system;
[0040] The remote monitoring and control system can display the equipment operation status and the operation parameters of the electric hoist equipment system of the second cooling chamber, and can modify the operation parameters of the electric hoist of the second cooling chamber;
[0041] The programming control system can control the movement and lifting action of the crane to replace the cooling section;
[0042] The secondary cooling chamber electric hoist equipment system can perform the lifting operation of replacing the cooling section.
[0043] The present invention uses intelligent programming control system and remote monitoring control system, so that workers can operate without entering the workshop, reducing labor costs and improving work efficiency. Remote control reduces the risk exposure of workers on site, greatly reduces the probability of accidents, and improves production safety.
[0044] In this embodiment, the remote detection and control system includes a remote monitoring screen and a remote monitoring console. The remote monitoring screen can display the equipment operation status and the operating parameters of the second cold room electric hoist equipment system. The remote monitoring console can modify the operating parameters of the second cold room electric hoist.
[0045] The program control system includes a detection unit and a program controller, the program controller is connected with a position sensor and a speed sensor, and the position sensor and the speed sensor are connected with a remote monitoring console;
[0046] The secondary cold room electric hoist equipment system includes a crane, a power unit, a position sensor and a speed sensor, and the position sensor and the speed sensor can provide the remote monitoring console with the equipment operation status and the operation parameters of the secondary cold room electric hoist;
[0047] The detection unit is connected to the programming controller, and the detection unit can detect whether the equipment of the programming controller is operating normally. The position sensor and the speed sensor are both connected to the crane, and the input ends of the position sensor and the speed sensor can input signals of the position and speed of the crane. The output ends of the position sensor and the speed sensor are respectively connected to the input end of the remote monitoring screen and the input end of the programming controller. The position sensor and the speed sensor can transmit signals to the remote detection screen for staff to observe, so as to understand the operating status of the crane. The position sensor and the speed sensor can transmit signals to the programming controller, and the programming controller performs corresponding operations according to the input signals; the remote monitoring console is connected to the input end of the programming controller, and the remote monitoring console can perform operations such as parameter modification on the programming controller. The programming console is connected to the electric hoist of the crane, and the programming controller can control the electric hoist so that the crane can perform hoisting operations to replace the cooling section;
[0048] The starting power unit is connected to the crane through a programming controller. The power unit can provide operating power for the crane, and the programming controller can control the start and stop of the crane.
[0049] The present invention combines the traditional relay control system with the intelligent programming control system, which not only retains the stability of the traditional control system, but also has the flexibility of the intelligent control system. The system has a built-in detection unit that can monitor the status of hardware devices and communication devices in real time. Once an abnormality is found, it will immediately alarm and remind the staff, effectively preventing the expansion of the fault and improving the reliability of the system.
[0050] The intelligent control system of the present invention reduces the use of fuses, reduces the downtime caused by fuse blowing, and also reduces the volume of the electrical control cabinet, reducing the probability of fire accidents in the electrical cabinet. Through the combination of programmable controller and sensor, the system fault troubleshooting and maintenance process is simpler, reducing maintenance costs and difficulty.
[0051] The intelligent control system of the present invention reduces the number of hardware in the electrical control cabinet and reduces the size of the control cabinet. Compared with the traditional relay control system, the programming control system can adjust parameters more conveniently without making different adjustments for different electrical appliances, thereby improving the convenience and accuracy of parameter adjustment.
[0052] In this embodiment, the control system also includes a relay control device system. The remote control console and the second cold room electric hoist equipment system are connected through the relay device system, so that in the event of a controller failure, the staff can start the relay device to work, thereby ensuring the normal operation of the equipment.
[0053] In this embodiment, the programming controller also includes a memory unit (not shown in the figure), which has a memory function, so that it can record the workflow of manual operations of the staff and run it automatically, so that it can improve work efficiency.
[0054] The partial control components and PLC configuration used in the programmable control system of the system of the present invention can be seen in Table 1.
[0055] Table 1 Part of the control components and PLC configuration used in the programming control system of the present invention
[0056]
[0057] like Figure 3 to Figure 4 As shown, the method for using the above-mentioned intelligent control system of the electric hoist in the continuous casting second cooling chamber includes the following steps:
[0058] (1) Write the controllable input variables and output variables of the device, and then load them into the controller CPU for operation;
[0059] (2) The detection unit is started to detect whether the hardware equipment and communication equipment of the control system are intact. If the hardware equipment and communication equipment are intact, the next step is carried out. Otherwise, the equipment alarm reminds the staff of equipment failure and the program is interrupted;
[0060] (3) Start the crane power unit, then release the crane safety lock, and determine whether the crane is at the initial position according to the signal transmitted by the crane position sensor. If it is at the initial position, proceed to the next step, otherwise the equipment moves to the initial position;
[0061] (4) Start the main system of the crane, and the detection unit detects the main control machine to determine whether it has a fault. If not, proceed to the next step. Otherwise, the equipment is filtered out and tested again. If multiple tests show a fault, the equipment alarm reminds the staff of the equipment fault and the program is interrupted;
[0062] (5) The main contactor of the crane is energized, the electric hoist is started, and the crane begins to operate. Manual control or automatic control is selected based on the operation of the operator at the control console. If manual control is selected, the electric hoist moves according to the operation of the operator at the control console;
[0063] (6) If automatic control is in operation, the crane is first selected to be in the south hook or north hook position, and then the crane moves to the working area according to the feedback from the position sensor and the set parameters of the program. At the same time, according to the speed sensor signal, the crane first moves quickly to the working area, and then moves slowly after arriving at the working area to perform precise alignment to complete the lifting work, and then moves the hoisted object to other working areas to complete the lifting work.
[0064] The present invention replaces the traditional control system with an intelligent programming control system through an intelligent control system and retains the original traditional control system, so that it can not only meet the working requirements under different circumstances, but also perform normal work when the equipment is abnormal, greatly improving the work efficiency. Through the intelligent programming control system and remote monitoring control, the staff can operate without entering the workshop, which greatly reduces the probability of accidents and improves safety. Through the intelligent programming control system, compared with the traditional control system, it reduces the use of fuses, reduces the size of the electrical control cabinet, reduces the probability of fire accidents in the electrical cabinet and the difficulty of accident maintenance.
[0065] Although the embodiments of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments.
Claims
1. An intelligent control system for electric hoists in a continuous casting secondary cooling chamber, characterized in that: The system includes a remote monitoring control system, a programming control system and a second cooling chamber electric hoist equipment system, wherein the remote monitoring control system is connected to the programming control system, and the programming control system is connected to the second cooling chamber electric hoist equipment system; The remote monitoring and control system can display the equipment operation status and the operation parameters of the electric hoist equipment system of the second cooling chamber, and can modify the operation parameters of the electric hoist of the second cooling chamber; The programming control system can control the movement and lifting action of the crane to replace the cooling section; The secondary cooling chamber electric hoist equipment system can perform lifting operations for replacing cooling sections.
2. The intelligent control system of electric hoist in the second cooling chamber of continuous casting according to claim 1 is characterized by: The remote detection and control system includes a remote monitoring screen and a remote monitoring console. The remote monitoring screen can display the equipment operation status and the operating parameters of the electric hoist equipment system of the second cold room. The remote monitoring console can modify the operating parameters of the electric hoist of the second cold room. The program control system includes a detection unit and a program controller, the program controller is connected with a position sensor and a speed sensor, and the position sensor and the speed sensor are connected with a remote monitoring console; The secondary cold room electric hoist equipment system includes a crane, a power unit, a position sensor and a speed sensor, and the position sensor and the speed sensor can provide the remote monitoring console with the equipment operation status and the operation parameters of the secondary cold room electric hoist; The detection unit is connected to the programming controller, and the detection unit can detect whether the equipment of the programming controller is operating normally. The position sensor and the speed sensor are both connected to the crane, and the input ends of the position sensor and the speed sensor can input signals of the position and speed of the crane. The output ends of the position sensor and the speed sensor are respectively connected to the input end of the remote monitoring screen and the input end of the programming controller. The position sensor and the speed sensor can transmit signals to the remote detection screen for staff to observe, so as to understand the operating status of the crane. The position sensor and the speed sensor can transmit signals to the programming controller, and the programming controller performs corresponding operations according to the input signals; the remote monitoring console is connected to the input end of the programming controller, and the remote monitoring console can perform operations such as parameter modification on the programming controller. The programming console is connected to the electric hoist of the crane, and the programming controller can control the electric hoist so that the crane can perform hoisting operations to replace the cooling section; The starting power unit is connected to the crane through a programming controller. The power unit can provide operating power for the crane, and the programming controller can control the start and stop of the crane.
3. The intelligent control system of electric hoist in the continuous casting second cooling chamber according to claim 2 is characterized by: The programming controller also includes a memory unit, which has a memory function so that it can record the workflow of manual operations by the staff and run it automatically, so that it can improve work efficiency.
4. The intelligent control system for electric hoist in the continuous casting secondary cooling chamber according to any one of claims 1 to 3, characterized in that: The control system also includes a relay control device system, and the remote control console and the second cold room electric hoist device system are connected through the relay device system, so that in the event of a controller failure, the staff can start the relay device to work.
5. The method for using the intelligent control system for the electric hoist in the continuous casting secondary cooling chamber according to any one of claims 1 to 4, characterized in that: The steps include: (1) Write the controllable input variables and output variables of the device, and then load them into the controller CPU for operation; (2) The detection unit is started to detect whether the hardware equipment and communication equipment of the control system are intact. If the hardware equipment and communication equipment are intact, the next step is carried out. Otherwise, the equipment alarm reminds the staff of equipment failure and the program is interrupted; (3) Start the crane power unit, then release the crane safety lock, and determine whether the crane is at the initial position according to the signal transmitted by the crane position sensor. If it is at the initial position, proceed to the next step, otherwise the equipment moves to the initial position; (4) Start the main system of the crane, and the detection unit detects the main control machine to determine whether it has a fault. If not, proceed to the next step. Otherwise, the equipment is filtered out and tested again. If multiple tests show a fault, the equipment alarm reminds the staff of the equipment fault and the program is interrupted; (5) The main contactor of the crane is energized, the electric hoist is started, and the crane begins to operate. Manual control or automatic control is selected based on the operation of the operator at the control console. If manual control is selected, the electric hoist moves according to the operation of the operator at the control console; (6) If automatic control is in operation, the crane is first selected to be in the south hook or north hook position, and then the crane moves to the working area according to the feedback from the position sensor and the set parameters of the program. At the same time, according to the speed sensor signal, the crane first moves quickly to the working area, and then moves slowly after arriving at the working area to perform precise alignment to complete the lifting work, and then moves the hoisted object to other working areas to complete the lifting work.
6. Application of the intelligent control system for electric hoists in the secondary cooling chamber of continuous casting as claimed in any one of claims 1 to 5 in replacing cooling sections in the secondary cooling chamber of continuous casting.